Hi >From my current setup. For OS, you can set it as raid 1, other than that, just make it single disk. Cheers Chia Wei Notice The information in this message is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying or distribution of the message, or any action taken by you in reliance on it, is prohibited and may be unlawful. This email is for communication purposes only. It is not intended to constitute an offer or form a binding agreement. Our company accepts no liability for the content of this email, or for the consequences of any actions taken on the basis of the information provided. If you have received this message in error, please delete it and contact the sender immediately. Thank you. Benjamin <benjo11111@gmail .com> To squid-users@xxxxxxxxxxxxxxx 22-12-2011 02:25 cc PM Subject Disk selection consideration Hi, While we are planning for fast disk, h/w vendor tells that for SAS(15k) they suggest raid controller.But as per squid , they do not suggest RAID terminology.So suppose if we use disks as normal each single disk rather than as single raid ( bunch of disk) with raid controller, is has any performance impact? What is best for disk ? each disk as single disk or need to go with raid controller with as a raid ( bunch of disks) ? Kindly suggest us, what is the better option while planing for h/w selection.? Thanks, Benjamin ForwardSourceID:NT0000B7CA